Declan

Boy Name #131 Most Popular Rising 2 Syllables

An ancient Irish saint's name meaning full of goodness

Irish English American

Classic Strong Earthy Traditional

Meaning & Origin

"man of prayer"

Origin: Irish Gaelic

Language: Irish

"full of goodness"

Origin: Irish

Language: English

"man of prayer"

Origin: Old Irish

Language: Irish

The Story of Declan

Declan is an Anglicization of the Irish name Deaglán, which may derive from the Old Irish 'deach' (good) and 'lán' (full) — thus 'full of goodness' — or alternatively relate to 'man of prayer.' The name belongs to Saint Declan of Ardmore, a 5th-century Irish bishop who is said to have brought Christianity to Ireland even before Saint Patrick, making it one of Ireland's most ancient Christian names.

Declan gained significant popularity in the US and Australia in the 2000s-2010s as part of the broader wave of Irish names (alongside Liam, Finn, and Connor). Its crisp, two-syllable sound and authentic Irish heritage made it appealing to parents seeking names with cultural roots.

In Ireland, Declan is deeply tied to Saint Declan of Ardmore, County Waterford. His holy well and oratory at Ardmore are pilgrimage sites to this day. The name carries the weight of pre-Patrician Christianity in Ireland.

Fun Facts

Saint Declan is said to have converted Irish kings to Christianity before Saint Patrick arrived
Ardmore, County Waterford, where Saint Declan's monastery stood, contains Ireland's oldest intact round tower

Declan in Other Languages

Irish Deaglán

English Declan

Spanish Declan

Scottish Gaelic Deaclán

Famous People Named Declan

Declan Donnelly

Entertainer

1975

British TV presenter known as 'Dec' from the duo Ant & Dec, one of Britain's most beloved presenters

Elvis Costello

Musician

1954

British singer-songwriter born Declan MacManus, known for Alison and Watching the Detectives

Saint Declan of Ardmore

Religious

350

5th-century Irish bishop and patron saint of the Déisi people, said to have evangelized Ireland before Saint Patrick

Quick Facts

Gender: Boy
Syllables: 2
Popularity Rank: #131
Total SSA Count: 2,758
Cultural Origins: Irish English American
Pronunciation: Easy
Formality: Moderate
Cross-Cultural Ease: Moderate

Common Nicknames

Dec Decs

Pairs Well With

Declan James Declan Patrick Declan Michael Declan Ryan Declan Thomas Declan Cole Declan Owen

Sibling Names

Finn Liam Siobhan Aoife Rowan Brenna

Also a Girl Name

Declan is also used as a girl name, ranked #8062.

View Declan as a girl name →

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Playground Safety

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Frequently Asked Questions About Declan

What does the name Declan mean?

"man of prayer" (from Irish Gaelic). "full of goodness" (from Irish). "man of prayer" (from Old Irish). Declan is an Anglicization of the Irish name Deaglán, which may derive from the Old Irish 'deach' (good) and 'lán' (full) — thus 'full of goodness' — or alternatively relate to 'man of prayer.' The name belongs to Saint Declan of Ardmore, a 5th-century Irish bishop who is said to have brought Christianity to Ireland even before Saint Patrick, making it one of Ireland's most ancient Christian names.

What is the origin of the name Declan?

Declan has Irish Gaelic, Irish, Old Irish, English, and American origins. In Irish Gaelic, it means "man of prayer". In Irish, it means "full of goodness". In Old Irish, it means "man of prayer".

Is Declan a boy or girl name?

Declan is used as both a boy and girl name. As a boy name, it is ranked #131. As a girl name, it is ranked #8062. Declan is more commonly used as a boy name.

How popular is the name Declan?

Declan is currently ranked #131 in popularity for boy names in the United States.

What are common nicknames for Declan?

Common nicknames for Declan include Dec and Decs.

What are good middle names for Declan?

Popular middle name pairings include Declan James, Declan Patrick, Declan Michael, Declan Ryan, Declan Thomas, Declan Cole, and Declan Owen.

What are good sibling names for Declan?

Names that pair well with Declan as siblings include Finn, Liam, Siobhan, Aoife, Rowan, and Brenna.

How many syllables does Declan have?

Declan has 2 syllables, making it easy to say and remember.

Is Declan a common or rare name?

Declan is a popular name, ranked #131 for boys. It is well-known without being overused.

About the Name Declan

Declan is a boy name with Irish, English, and American origins . The name means "man of prayer" in Irish Gaelic .

Is Declan a boy or girl name? Declan is used as both a boy and girl name. As a boy name, it ranks #131 in popularity. As a girl name, it ranks #8,062. Declan is more commonly used as a boy name.

Declan is currently ranked #131 in popularity for boy names in the United States.

The name Declan has 2 syllables, making it easy to pronounce and remember.

Common nicknames for Declan include Dec and Decs. These shorter forms provide casual alternatives while keeping the elegance of the full name.